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• Route a specific user's traffic via VPN but still allow local networking

  - by wbg

  So, I want to route certain traffic via a VPN connection and the rest via my normal Internet connection. I want to run several different programs and most of them don't support binding to a specific network interface (tun0 in my case). I've managed to send a specific user's traffic via the VPN following the answers given here: iptables - Target to route packet to specific interface? But unfortunately, when I run a server that connects to the Internet and has a web interface running on a local IP (127.0.0.1/192.168.0.*), all the Internet traffic correctly goes via tun0, but I'm unable to connect to the web interface from a local IP as a different user. When I log in as the VPN-ified user, I can access services running on local IPs, but other users/machines can't access any servers I start. Can anyone point me in the right direction?

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• Logins with only HTTP - are they as insecure as I'm thinking?

  - by JoeCool1986

  Recently I was thinking about how websites like gmail and amazon use HTTPS during the login process when accessing your account. This makes sense, obviously, since you're typing in your account username and password and you would want that to be secure. However, on Facebook, among countless other websites, their logins are done with simple HTTP. Doesn't that mean that my login name and password are completely unencrypted? Which, even worse, means that all those people who login to their facebooks (or similar sites) at a wifi hotspot in public are susceptible to anyone getting their credentials using a simple packet sniffer (or something similar)? Is it really that easy? Or am I misunderstanding internet security? I'm a software engineer working on some web related stuff, and although at the current time I'm not too involved with the security aspect of our software, I knew I should probably know the answer to this question, since it's extremely fundamental to website security. Thanks!

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• In Wireshark's Protocol Hierarchy Statistics screen, is the total byte count of a capture the sum of the Bytes column or just the top line (Frame)?

  - by Howiecamp

  Part 1 - I'm looking at Wireshark's Protocol Hierarchy Statistics screen (sample below), is the total byte count of the capture the sum of the Bytes column or just the top line (Frame)? I'm 99% that it's the latter because of protocol rollup but I wanted to conform. Part 2 - From Wireshark documentation on this screen, "Protocol layers can consist of packets that won't contain any higher layer protocol, so the sum of all higher layer packets may not sum up to the protocols packet count. Example: In the screenshot TCP has 85,83% but the sum of the subprotocols (HTTP, ...) is much less. This may be caused by TCP protocol overhead, e.g. TCP ACK packets won't be counted as packets of the higher layer)." Can you explain this?

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• Wireshark Display Filter protocol==TLSV1? (and PacketLength)

  - by NealWalters

  What would the filter expression be to just select the protocols where the protocol = TLSV1? Something obvious like protocol == "TLSV1" or TCP.protocol == "TLSV1" is apparently not the right way. ip.proto == "TLSV1" says "ip.proto cannot accept strings as values" Update - additional tips: Another great but hidden search is on PacketLength: You can add packet length to your display by clicking "Edit Preferences" (menu or icon), and adding the PacketLength as a new column, but to filter on it you have to use the more cryptic: frame.len == ### where ### is your desired number. We were using this to determine how many packets had been sent and/or received, when you filter, the status-bar at the bottom of the screen shows the number of items matching the filter.

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• Redirect with iptables if destination port is not listened

  - by PoltoS

  I've a server listening on port 10000. But this server is running only in a special case (then some third service is available). Otherwise the port is not listened. Is it possible to redirect the client to another port if 10000 is not listening? I see two solutions: 1) insert/remove iptables rules on server start/stop, but since the server may be killed, it may not insert the correct iptable redirect rule before dieing. 2) make a permanent userspace rule that checks if the port is listening and redirects the packet if not listened. How to do 2) ? Do someone have recipes for ipq? May be someone can suggest me a better way? It is something like fallback redirect: I'll have thousand of clients with different ports (10000-11000) and if their instance of server is not running, whey should be redirected to some page explaining why they don't have and instance connected.

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• How to retrieve connection details of CheckPoint SSL Network Extender?

  - by amoe

  My workplace uses a Java-based VPN tool named CheckPoint SSL Network Extender. I would like to configure the VPN connection myself using stock OS tools, because I find the applet to be rather unstable. How would I go about getting all of the connection details needed to manually connect to the VPN? My workplace only supports the official client. When I am connected with the Java applet, if I run ipconfig /all I can see that a hidden network connection is created named Check Point Virtual Network Adapter For SSL Network Extender - Packet Scheduler Miniport. I can see the various IP and DNS details there as well. However, because I need to log in to the applet-based tool, I presume I need to export some kind of key in order to use OS tools to configure this. Is this even possible? Answers for any OS are great although I am using Windows XP to test, and also want to use Linux clients.

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• How to run wireshark on the background without the GUI?

  - by user60968

  Hello everybody, I am trying to run Wireshark on Mac OS X, on the background. I did install the command line utilities, and so I am able to start wireshark and capture packet using the command line. The only thing I want now is to run it on the background, without even having the X11 icon on the task bar and see the window of wireshark. I believe it is possible but can't find anything on the doc of Wireshark. Maybe another way would be to find a trick to hide an icon on Mac OS X... If anybody already did that or have an idea... Thank you Please excuse my English which is not perfect at all

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• LAN full of public ipv4 addresses - How to filter it?

  - by sparc86

  The answer to my question maybe is not that hard but anyways, I do not know what to do. So, I just got in a new job in a Univerisity and I found out that the network (the LAN) is full of public IP addresses. Seriously, the whole LAN (probably more than 150 hosts) has it' own internet IP address and I don't know how to manage it. I have a very good experience using iptables (Linux firewall) in a NAT'ed environment. But then how should I proceed in an environment where all my LAN is working with a bunch of public IP addresses? Should I just use the "forward" rules and ignore the NAT rules or is there any other issue in such environment which I should take care? Can I add a firewall between the router and the LAN in order to produce packet filtering for these public IP addresses in my LAN or will this just not work? Thanks!

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• Can OpenVPN be set up so the server doesn't have interface that is part of the VPN?

  - by BCS

  I'm looking to set up a VPN (OpenVPN is my first choice but I'm not stuck with it) in such a way that the server that hosts the VPN is not visible from within the VPN. That is; any packet that a client sends via the VPN interface will get delivered to another client's VPN interface or get dropped. In the other direction, the server shouldn't have a VPN interface at all and normal network operations shouldn't be able to send packets on the network. Can this be done? All the docs I have found have assumed that clients will connect via DHCP (this requiring that the server connect at least to that extent) but I can't think of any reason that a VPN couldn't use static IP's or that the DHCP server couldn't be implemented inside the VPN (see edit) server without setting up a VPN interface on the server. Edit: Based on the link on bridged mode from Phil Hollenback's answer it seems that OpenVPN does in fact have the "internal DHCP server" that I'm thinking of.

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• Apache not responding in amazon ec2

  - by Viren

  Well this might sound awkward but I facing terrible issue with my Amazon EC2 instance one of the finding I see is that apache is not responding on port 80 which is weird because I can't even find the incoming packet to port 80 in tcpdump output As per the security rules all security rules are in place correctly at least in amazon console I restarted the apache to listen to port 8080 and added port 8080 and add 8080 to security rule and everything work but I cant just able to understand as to why the port 80 not responding Needless to say since port 8080 is responding all my CNAME and A-record is working too UPDATE No firewall issue either I just cross check the iptables and list is empty Can some share a light on this

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• Wireshark TCP Window Size Value

  - by T Vernon

  I am debugging an application with Wireshark and watching the TCP Window Size value shrink on one side of the communication. If the packet's TCP section shows a "Window size value: 1", does that mean the source's window size is 1 or the destination's window size is 1? I know one side is communicating faster than the other can handle, I just want be sure I know which one it is. 1 192.168.0.1 - 192.168.0.100, Modbus/TCP, Length: 66, Window Size Value: 1 2 192.168.0.100 - 192.168.0.1, TCP, Length: 60, Window Size Value: 92 3 192.168.0.100 - 192.168.0.1 TCP, Length: 310, Window Size Value: 92 4 192.168.0.1 - 192.168.0.100 TCP, Length: 54, Window Size Value: 0 So is 192.168.0.1's window size 0 or is it reporting that 192.168.0.100's window is 0? Thanks.

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• connection prob

  - by user56944

  Hey guys I use Clear internet ie wireless to get my connection. I play a game online Eve Online which has had on and off CTD(crash to desktop) due to the connection timing out. Usually I have trouble only late at night after work but today I had no connection at 4 pm. They ran a trace route and Im using Ping plotter to do a trace in real time. I have 100% packet loss at hop 2 and Im getting varible loss at hop 6 at ae-72-70.ebr2.Dallas1.Level3.net Also had windows send a dump to Microsoft mentioning the eve file has a problem requiring it to close. Any thoughts ? TIA!

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• ssh permission denied

  - by Gitmo

  I am trying to ssh into a remote machine and I get the following debug messages: debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to xxx.xxx.x.xx [xxx.xxx.xx.x] port 22. debug1: Connection established. debug3: Not a RSA1 key file /home/hadoop/.ssh/id_rsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-----END' debug3: key_read: missing keytype debug1: identity file /home/hadoop/.ssh/id_rsa type 1 debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048 debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-6ubuntu2 debug1: match: OpenSSH_5.1p1 Debian-6ubuntu2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.1p1 Debian-6ubuntu2 debug2: fd 3 setting O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,[email protected],aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,[email protected],aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,[email protected],aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,[email protected],aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_setup: found hmac-md5 debug1: kex: server->client aes128-cbc hmac-md5 none debug2: mac_setup: found hmac-md5 debug1: kex: client->server aes128-cbc hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug2: dh_gen_key: priv key bits set: 128/256 debug2: bits set: 511/1024 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug3: check_host_in_hostfile: filename /home/hadoop/.ssh/known_hosts debug3: check_host_in_hostfile: match line 20 debug1: Host '192.168.1.63' is known and matches the RSA host key. debug1: Found key in /home/hadoop/.ssh/known_hosts:20 debug2: bits set: 511/1024 debug1: ssh_rsa_verify: signature correct debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /home/hadoop/.ssh/id_rsa (0x241c110) debug1: Authentications that can continue: publickey,password debug3: start over, passed a different list publickey,password debug3: preferred gssapi-keyex,gssapi-with-mic,gssapi,publickey,keyboard-interactive debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering public key: /home/hadoop/.ssh/id_rsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,password debug2: we did not send a packet, disable method debug1: No more authentication methods to try. Permission denied (publickey,password). What seems to be the problem?? I have tried everything, this is driving me nuts.

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• Cannot connect to MySQL with JDBC - Connection Timeout - Ubuntu 9.04

  - by gav

  I am running Ubuntu and am ultimately trying to connect Tomcat to my MySQL database using JDBC. It has worked previously but after a reboot the instance now fails to connect. Both Tomcat 6 and MySQL 5.0.75 are on the same machine Connection string: jdbc:mysql:///localhost:3306 I can connect to MySQL on the command line using the mysql command The my.cnf file is pretty standard (Available on request) has bind address: 127.0.0.1 I cannot Telnet to the MySQL port despite netstat saying MySQL is listening I have one IpTables rule to forward 80 - 8080 and no firewall I'm aware of. I'm pretty new to this and I'm not sure what else to test. I don't know whether I should be looking in etc/interfaces and if I did what to look for. It's weird because it used to work but after a reboot it's down so I must have changed something.... :). I realise a timeout indicates the server is not responding and I assume it's because the request isn't actually getting through. I installed MySQL via apt-get and Tomcat manually. MySqld processes root@88:/var/log/mysql# ps -ef | grep mysqld root 21753 1 0 May27 ? 00:00:00 /bin/sh /usr/bin/mysqld_safe mysql 21792 21753 0 May27 ? 00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --skip-external-locking --port=3306 --socket=/var/run/mysqld/mysqld.sock root 21793 21753 0 May27 ? 00:00:00 logger -p daemon.err -t mysqld_safe -i -t mysqld root 21888 13676 0 11:23 pts/1 00:00:00 grep mysqld Netstat root@88:/var/log/mysql# netstat -lnp | grep mysql tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 21792/mysqld unix 2 [ ACC ] STREAM LISTENING 1926205077 21792/mysqld /var/run/mysqld/mysqld.sock Toy Connection Class root@88:~# cat TestConnect/TestConnection.java import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; public class TestConnection { public static void main(String args[]) throws Exception { Connection con = null; try { Class.forName("com.mysql.jdbc.Driver").newInstance(); System.out.println("Got driver"); con = DriverManager.getConnection( "jdbc:mysql:///localhost:3306", "uname", "pass"); System.out.println("Got connection"); if(!con.isClosed()) System.out.println("Successfully connected to " + "MySQL server using TCP/IP..."); } finally { if(con != null) con.close(); } } } Toy Connection Class Output Note: This is the same error I get from Tomcat. root@88:~/TestConnect# java -cp mysql-connector-java-5.1.12-bin.jar:. TestConnection Got driver Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 1 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:409) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1122) at TestConnection.main(TestConnection.java:14) Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:409) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1122) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:344) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2181) ... 12 more Caused by: java.net.ConnectException: Connection timed out at java.net.PlainSocketImpl.socketConnect(Native Method) ... 13 more Telnet Output root@88:~/TestConnect# telnet localhost 3306 Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection timed out

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• Database connection timeout

  - by Clinton Bosch

  Hi I have read so many articles on the Internet about this problem but none seem to have a clear solution. Please could someone give me a definite answer as to why I am getting database timeouts. The app is a GWT app that is being hosted on a Tomcat 5.5 server. I use spring and the session factory is created in the applicationContext.xml as follows <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">${connection.dialect}</prop> <prop key="hibernate.connection.username">${connection.username}</prop> <prop key="hibernate.connection.password">${connection.password}</prop> <prop key="hibernate.connection.url">${connection.url}</prop> <prop key="hibernate.connection.driver_class">${connection.driver.class}</prop> <prop key="hibernate.show_sql">${show.sql}</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> <prop key="hibernate.c3p0.min_size">5</prop> <prop key="hibernate.c3p0.max_size">20</prop> <prop key="hibernate.c3p0.timeout">1800</prop> <prop key="hibernate.c3p0.max_statements">50</prop> <prop key="hibernate.c3p0.idle_test_period">300</prop> </props> </property> <property name="annotatedClasses"> <list> <value>za.co.xxxx.traintrack.server.model.Answer</value> <value>za.co.xxxx.traintrack.server.model.Company</value> <value>za.co.xxxx.traintrack.server.model.CompanyRegion</value> <value>za.co.xxxx.traintrack.server.model.Merchant</value> <value>za.co.xxxx.traintrack.server.model.Module</value> <value>za.co.xxxx.traintrack.server.model.Question</value> <value>za.co.xxxx.traintrack.server.model.User</value> <value>za.co.xxxx.traintrack.server.model.CompletedModule</value> </list> </property> </bean> <bean id="dao" class="za.co.xxxx.traintrack.server.DAO"> <property name="sessionFactory" ref="sessionFactory"/> <property name="adminUsername" value="${admin.user.name}"/> <property name="adminPassword" value="${admin.user.password}"/> <property name="godUsername" value="${god.user.name}"/> <property name="godPassword" value="${god.user.password}"/> </bean> All works fine untile the next day: INFO | jvm 1 | 2010/06/15 14:42:27 | 2010-06-15 18:42:27,804 WARN [JDBCExceptionReporter] : SQL Error: 0, SQLState: 08S01 INFO | jvm 1 | 2010/06/15 14:42:27 | 2010-06-15 18:42:27,821 ERROR [JDBCExceptionReporter] : The last packet successfully received from the server was 38729 seconds ago.The last packet sent successfully to the server was 38729 seconds ago, which is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem. INFO | jvm 1 | 2010/06/15 14:42:27 | Jun 15, 2010 6:42:27 PM org.apache.catalina.core.ApplicationContext log INFO | jvm 1 | 2010/06/15 14:42:27 | SEVERE: Exception while dispatching incoming RPC call I have read so many different things (none of which worked), please help

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• Play! Framework 1.2.4 --- C3P0 settings to avoid Communications link failure do to idle time

  - by HelpMeStackOverflowMyOnlyHope

  I'm trying to customize my C3P0 settings to avoid the error shown at the bottom of this post. It was suggested at this url --- http://make-it-open.blogspot.com/2008/12/sql-error-0-sqlstate-08s01.html --- to adjust the settings as follows: In hibernate.cfg.xml, write <property name="c3p0.min_size">5</property> <property name="c3p0.max_size">20</property> <property name="c3p0.timeout">1800</property> <property name="c3p0.max_statements">50</property> Then create "c3p0.properties" in your root classpath folder and write c3p0.testConnectionOnCheckout=true c3p0.acquireRetryDelay=1000 c3p0.acquireRetryAttempts=1 I've tried to make those adjustments following the direction of the Play! Framework documentation, where they say use "db.pool..." as follows: db.pool.timeout=1800 db.pool.maxSize=15 db.pool.minSize=5 db.pool.initialSize=5 db.pool.acquireRetryAttempts=1 db.pool.preferredTestQuery=SELECT 1 db.pool.testConnectionOnCheckout=true db.pool.acquireRetryDelay=1000 db.pool.maxStatements=50 Are those settings not going to work? Should I be trying to set them in a different way? With those settings I still get the error shown below, that is due to to long of a idle time. Complete Stack Trace of Error: 23:00:44,932 WARN ~ SQL Error: 0, SQLState: 08S01 2012-04-13T23:00:44+00:00 app[web.1]: 23:00:44,932 ERROR ~ Communications link failure 2012-04-13T23:00:44+00:00 app[web.1]: 2012-04-13T23:00:44+00:00 app[web.1]: The last packet successfully received from the server was 274,847 milliseconds ago. The last packet sent successfully to the server was 7 milliseconds ago. 2012-04-13T23:00:44+00:00 app[web.1]: 23:00:44,934 ERROR ~ Why the driver complains here? 2012-04-13T23:00:44+00:00 app[web.1]: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.Connection was implicitly closed by the driver. 2012-04-13T23:00:44+00:00 app[web.1]: at com.mysql.jdbc.Util.handleNewInstance(Util.java:407) 2012-04-13T23:00:44+00:00 app[web.1]: at com.mysql.jdbc.Util.getInstance(Util.java:382) 2012-04-13T23:00:44+00:00 app[web.1]: at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013) 2012-04-13T23:00:44+00:00 app[web.1]: at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987) 2012-04-13T23:00:44+00:00 app[web.1]: at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982) 2012-04-13T23:00:44+00:00 app[web.1]: at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927) 2012-04-13T23:00:44+00:00 app[web.1]: at com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException(ConnectionImpl.java:1213) 2012-04-13T23:00:44+00:00 app[web.1]: at com.mysql.jdbc.ConnectionImpl.getMutex(ConnectionImpl.java:3101) 2012-04-13T23:00:44+00:00 app[web.1]: at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4975) 2012-04-13T23:00:44+00:00 app[web.1]: at org.hibernate.jdbc.BorrowedConnectionProxy.invoke(BorrowedConnectionProxy.java:74) 2012-04-13T23:00:44+00:00 app[web.1]: at $Proxy49.setAutoCommit(Unknown Source) 2012-04-13T23:00:44+00:00 app[web.1]: at play.db.jpa.JPAPlugin.closeTx(JPAPlugin.java:368) 2012-04-13T23:00:44+00:00 app[web.1]: at play.db.jpa.JPAPlugin.onInvocationException(JPAPlugin.java:328) 2012-04-13T23:00:44+00:00 app[web.1]: at play.plugins.PluginCollection.onInvocationException(PluginCollection.java:447) 2012-04-13T23:00:44+00:00 app[web.1]: at play.Invoker$Invocation.onException(Invoker.java:240) 2012-04-13T23:00:44+00:00 app[web.1]: at play.jobs.Job.onException(Job.java:124) 2012-04-13T23:00:44+00:00 app[web.1]: at play.jobs.Job.call(Job.java:163) 2012-04-13T23:00:44+00:00 app[web.1]: at play.jobs.Job$1.call(Job.java:66) 2012-04-13T23:00:44+00:00 app[web.1]: at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) 2012-04-13T23:00:44+00:00 app[web.1]: at java.util.concurrent.FutureTask.run(FutureTask.java:166) 2012-04-13T23:00:44+00:00 app[web.1]: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:165) 2012-04-13T23:00:44+00:00 app[web.1]: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:266) 2012-04-13T23:00:44+00:00 app[web.1]: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 2012-04-13T23:00:44+00:00 app[web.1]: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 2012-04-13T23:00:44+00:00 app[web.1]: at java.lang.Thread.run(Thread.java:636) 2012-04-13T23:00:44+00:00 app[web.1]: Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

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• Problems with Asynchronous UDP Sockets

  - by ihatenetworkcoding

  Hi, I'm struggling a bit with socket programming (something I'm not at all familiar with) and I can't find anything which helps from google or MSDN (awful). Apologies for the length of this. Basically I have an existing service which recieves and responds to requests over UDP. I can't change this at all. I also have a client within my webapp which dispatches and listens for responses to that service. The existing client I've been given is a singleton which creates a socket and an array of response slots, and then creates a background thread with an infinite looping method that makes "sock.Receive()" calls and pushes the data received into the slot array. All kinds of things about this seem wrong to me and the infinite thread breaks my unit testing so I'm trying to replace this service with one which makes it's it's send/receives asynchronously instead. Point 1: Is this the right approach? I want a non-blocking, scalable, thread-safe service. My first attempt is roughly like this, which sort of worked but the data I got back was always shorter than expected (i.e. the buffer did not have the number of bytes requested) and seemed to throw exceptions when processed. private Socket MyPreConfiguredSocket; public object Query() { //build a request this.MyPreConfiguredSocket.SendTo(MYREQUEST, packet.Length, SocketFlags.Multicast, this._target); IAsyncResult h = this._sock.BeginReceiveFrom(response, 0, BUFFER_SIZE, SocketFlags.None, ref this._target, new AsyncCallback(ARecieve), this._sock); if (!h.AsyncWaitHandle.WaitOne(TIMEOUT)) { throw new Exception("Timed out"); } //process response data (always shortened) } private void ARecieve (IAsyncResult result) { int bytesreceived = (result as Socket).EndReceiveFrom(result, ref this._target); } My second attempt was based on more google trawling and this recursive pattern I frequently saw, but this version always times out! It never gets to ARecieve. public object Query() { //build a request this.MyPreConfiguredSocket.SendTo(MYREQUEST, packet.Length, SocketFlags.Multicast, this._target); State s = new State(this.MyPreConfiguredSocket); this.MyPreConfiguredSocket.BeginReceiveFrom(s.Buffer, 0, BUFFER_SIZE, SocketFlags.None, ref this._target, new AsyncCallback(ARecieve), s); if (!s.Flag.WaitOne(10000)) { throw new Exception("Timed out"); } //always thrown //process response data } private void ARecieve (IAsyncResult result) { //never gets here! State s = (result as State); int bytesreceived = s.Sock.EndReceiveFrom(result, ref this._target); if (bytesreceived > 0) { s.Received += bytesreceived; this._sock.BeginReceiveFrom(s.Buffer, s.Received, BUFFER_SIZE, SocketFlags.None, ref this._target, new AsyncCallback(ARecieve), s); } else { s.Flag.Set(); } } private class State { public State(Socket sock) { this._sock = sock; this._buffer = new byte[BUFFER_SIZE]; this._buffer.Initialize(); } public Socket Sock; public byte[] Buffer; public ManualResetEvent Flag = new ManualResetEvent(false); public int Received = 0; } Point 2: So clearly I'm getting something quite wrong. Point 3: I'm not sure if I'm going about this right. How does the data coming from the remote service even get to the right listening thread? Do I need to create a socket per request? Out of my comfort zone here. Need help.

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• Allow Incoming Responses from Curl On Ubuntu 11.10 - Curl

  - by Daniel Adarve

  I'm trying to get a Curl Response from an outside server, however I noticed I cant neither PING the server in question nor connect to it. I tried disabling the iptables firewall but I had no success. My server is running behind a Cisco Linksys WRTN310N Router with the DD-wrt firmware Installed. In which I already disabled the firewall. Here are my network settings: Ifconfig eth0 Link encap:Ethernet HWaddr 00:26:b9:76:73:6b inet addr:192.168.1.120 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::226:b9ff:fe76:736b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:49713 errors:0 dropped:0 overruns:0 frame:0 TX packets:30987 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:52829022 (52.8 MB) TX bytes:5438223 (5.4 MB) Interrupt:16 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:341 errors:0 dropped:0 overruns:0 frame:0 TX packets:341 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:27604 (27.6 KB) TX bytes:27604 (27.6 KB) /etc/resolv.conf nameserver 192.168.1.1 /etc/nsswitch.com passwd: compat group: compat shadow: compat hosts: files dns networks: files protocols: db files services: db files ethers: db files rpc: db files netgroup: nis /etc/host.conf order hosts,bind multi on /etc/hosts 127.0.0.1 localhost 127.0.0.1 callcenter # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters /etc/network/interfaces # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 192.168.1.120 netmask 255.255.255.0 network 192.168.1.1 broadcast 192.168.1.255 gateway 192.168.1.1 The Url to which im trying to get a connection to is https://www.veripayment.com/integration/index.php When I ping it on terminal heres what I get daniel@callcenter:~$ ping www.veripayment.com PING www.veripayment.com (69.172.200.5) 56(84) bytes of data. --- www.veripayment.com ping statistics --- 2 packets transmitted, 0 received, 100% packet loss, time 1007ms Thanks in Advance

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• vsftpd: chroot_local_user causes GNU/TLS-error

  - by akrosikam

  Distro: Ubuntu 12.04.2 Server 32-bit Server client: vsftpd 2.3.5 (from default "main" repository) Problem: Since upgrading from Ubuntu 10.04 to Ubuntu 12.04 (nothing changed on client-side), vsftp has refused to make chroot-jails with the "chroot_local_user" directive on FTP(e/i)S-connections. Here's my vsftpd.conf: anonymous_enable=NO local_enable=YES write_enable=YES local_umask=022 dirmessage_enable=YES xferlog_enable=YES xferlog_std_format=YES ftpd_banner=How are you gentlemen. listen=YES pam_service_name=vsftpd userlist_enable=YES userlist_deny=NO tcp_wrappers=YES connect_from_port_20=YES ftp_data_port=20 listen_port=21 pasv_enable=YES pasv_promiscuous=NO pasv_min_port=4242 pasv_max_port=4252 pasv_addr_resolve=YES pasv_address=your.domain.com ssl_enable=YES allow_anon_ssl=NO force_local_logins_ssl=YES force_local_data_ssl=YES ssl_tlsv1=YES ssl_sslv2=NO ssl_sslv3=NO rsa_cert_file=/home/maw/ssl_ftp_test/vsftpd.pem rsa_private_key_file=/home/maw/ssl_ftp_test/vsftpd.pem debug_ssl=YES log_ftp_protocol=YES ssl_ciphers=HIGH chroot_local_user=NO How to reproduce: Have a working SSL/TLS-secured vsftpd-configuration (I suggest similar to the one above) ready. Try to connect with an FTP user client and upload some files. With my setup, the above listed config works well at this point. Edit /etc/vsftpd.conf and set chroot_local_user= to YES. Make sure that chroot_list_enable= and/or chroot_list_file= are not set. Comment them out if they are. Save and exit. Run sudo restart vsftpd (or sudo service vsftpd restart if you like) in a terminal. Try to connect with an FTP user client. You should see a message more or less like this: GnuTLS error -15: An unexpected TLS packet was received. This is an issue for me, as I do not want FTP-sessions to be able to list files outside the user's home folder. I have checked with several client-side apps, and I get the same results with every one of them. Filezilla is not so good regarding cipher methods nowadays, but as I am able to make an FTP(e)s-connection over TLS (as long as chroot'ing is disabled and ssl_ciphers is set to HIGH) I have a feeling ciphers are not the issue this time, and that I won't find the answer by tweaking configs on the client side. My vsftpd.log stays empty, even though debug_ssl and log_ftp_protocol are enabled, so no info there either.

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• CodePlex Daily Summary for Tuesday, April 03, 2012

  CodePlex Daily Summary for Tuesday, April 03, 2012Popular ReleasesWiX Toolset: WiX v3.6 RC0: WiX v3.6 RC0 (3.6.2803.0) provides support for VS11 and a more stable Burn engine. For more information see Rob's blog post about the release: http://robmensching.com/blog/posts/2012/4/3/WiX-v3.6-Release-Candidate-Zero-availableSageFrame: SageFrame 2.0: Sageframe is an open source ASP.NET web development framework developed using ASP.NET 3.5 with service pack 1 (sp1) technology. It is designed specifically to help developers build dynamic website by providing core functionality common to most web applications.Lightbox Gallery Module for DotNetNuke: 01.11.00: This version of the Lightbox Gallery Module adds the following features/bug fixes: Feature: Read image EXIF information Bug Fix: URL parsing bug for any folder provider Minimum System Requirements Please ensure that your environment meets or exceeds the following system requirements: DotNetNuke® Version 06.00.00 or higher SQL Server 2005 or later .Net Framework 3.5 SP1 or laterClosedXML - The easy way to OpenXML: ClosedXML 0.65.0: Aside from many bug fixes we now have Conditional Formatting The conditional formatting was sponsored by http://www.bewing.nl (big thanks)callisto: callisto 2.0.24: Implemented ares encryption protocol for supported clients. Also changed script loading method to read direct from source files.sb0t: sb0t 4.61: Added packet encryption protocol for supported clients.iTuner - The iTunes Companion: iTuner 1.5.4475: Fix to parse empty playlists in iTunes LibraryExtAspNet: ExtAspNet v3.1.1: ExtAspNet - ?? ExtJS ??? ASP.NET 2.0 ???，????? AJAX ?????????? ExtAspNet ????? ExtJS ??? ASP.NET 2.0 ???，????? AJAX ??????????。 ExtAspNet ??????? JavaScript，?? CSS，?? UpdatePanel，?? ViewState，?? WebServices ???????。 ??????: IE 7.0, Firefox 3.6, Chrome 3.0, Opera 10.5, Safari 3.0+ ????：Apache License 2.0 (Apache) ??：http://extasp.net/ ??：http://bbs.extasp.net/ ??：http://extaspnet.codeplex.com/ ??：http://sanshi.cnblogs.com/ ????： +2012-04-02 v3.1.1 +????????，?????????????，????????????（...Document.Editor: 2012.2: Whats New for Document.Editor 2012.2: New Save Copy support New Page Setup support Minor Bug Fix's, improvements and speed upsVidCoder: 1.3.2: Added option for the minimum title length to scan. Added support to enable or disable LibDVDNav. Added option to prompt to delete source files after clearing successful completed items. Added option to disable remembering recent files and folders. Tweaked number box to only select all on a quick click.MJP's DirectX 11 Samples: Light Indexed Deferred Rendering: Implements light indexed deferred using per-tile light lists calculated in a compute shader, as well as a traditional deferred renderer that uses a compute shader for per-tile light culling and per-pixel shading.Pcap.Net: Pcap.Net 0.9.0 (66492): Pcap.Net - March 2012 Release Pcap.Net is a .NET wrapper for WinPcap written in C++/CLI and C#. It Features almost all WinPcap features and includes a packet interpretation framework. Version 0.9.0 (Change Set 66492)March 31, 2012 release of the Pcap.Net framework. Follow Pcap.Net on Google+Follow Pcap.Net on Google+ Files Pcap.Net.DevelopersPack.0.9.0.66492.zip - Includes all the tutorial example projects source files, the binaries in a 3rdParty directory and the documentation. It include...Extended WPF Toolkit: Extended WPF Toolkit - 1.6.0: Want an easier way to install the Extended WPF Toolkit?The Extended WPF Toolkit is available on Nuget. What's in the 1.6.0 Release?BusyIndicator ButtonSpinner Calculator CalculatorUpDown CheckListBox - Breaking Changes CheckComboBox - New Control ChildWindow CollectionEditor CollectionEditorDialog ColorCanvas ColorPicker DateTimePicker DateTimeUpDown DecimalUpDown DoubleUpDown DropDownButton IntegerUpDown Magnifier MaskedTextBox MessageBox MultiLineTex...Media Companion: MC 3.434b Release: General This release should be the last beta for 3.4xx. If there are no major problems, by the end of the week it will upgraded to 3.500 Stable! The latest mc_com.exe should be included too! TV Bug fix - crash when using XBMC scraper for TV episodes. Bug fix - episode count update when adding new episodes. Bug fix - crash when actors name was missing. Enhanced TV scrape progress text. Enhancements made to missing episodes display. Movies Bug fix - hide "Play Trailer" when multisaev...Better Explorer: Better Explorer 2.0.0.831 Alpha: - A new release with: - many bugfixes - changed icon - added code for more failsafe registry usage on x64 systems - not needed regfix anymore - added ribbon shortcut keys - Other fixes Note: If you have problems opening system libraries, a suggestion was given to copy all of these libraries and then delete the originals. Thanks to Gaugamela for that! (see discussion here: 349015 ) Note2: I was upload again the setup due to missing file!MonoGame - Write Once, Play Everywhere: MonoGame 2.5: The MonoGame team are pleased to announce that MonoGame v2.5 has been released. This release contains important bug fixes, implements optimisations and adds key features. MonoGame now has the capability to use OpenGLES 2.0 on Android and iOS devices, meaning it now supports custom shaders across mobile and desktop platforms. Also included in this release are native orientation animations on iOS devices and better Orientation support for Android. There have also been a lot of bug fixes since t...Circuit Diagram: Circuit Diagram 2.0 Alpha 3: New in this release: Added components: Microcontroller Demultiplexer Flip & rotate components Open XML files from older versions of Circuit Diagram Text formatting for components New CDDX syntax Other fixesUmbraco CMS: Umbraco 5.1 CMS (Beta): Beta build for testing - please report issues at issues.umbraco.org (Latest uploaded: 5.1.0.123) What's new in 5.1? The full list of changes is on our http://progress.umbraco.org task tracking page. It shows items complete for 5.1, and 5.1 includes items for 5.0.1 and 5.0.2 listed there too. Here's two headline acts: Members5.1 adds support for backoffice editing of Members. We support the pairing up of our content type system in Hive with regular ASP.NET Membership providers (we ship a def...51Degrees.mobi - Mobile Device Detection and Redirection: 2.1.2.11: One Click Install from NuGet Changes to Version 2.1.2.11Code Changes 1. The project is now licenced under the Mozilla Public Licence 2. 2. User interface control and associated data access layer classes have been added to aid developers integrating 51Degrees.mobi into wider projects such as content management systems or web hosting management solutions. Use the following in a web form or user control to access these new UI components. <%@ Register Assembly="FiftyOne.Foundation" Namespace="...ScintillaNET: ScintillaNET 2.5: A slew of bug-fixes with a few new features sprinkled in. This release also upgrades the SciLexer and SciLexer64 DLLs to version 3.0.4. The official stuff: Issue # Title 32402 32402 27137 27137 31548 31548 30179 30179 24932 24932 29701 29701 31238 31238 26875 26875 30052 30052 New Projects3DTweet: 3Dtweet is an effort to make tweets appear in a aesthetic manner to the users of windows phone.Its developed using VS2010 expresss.Alay Plugin for Windows Live Writer: a project for creating an alay languageAuthor-it Copy Folder Plug-in: The Copy Folder Plug-in is an Author-it plug-in that allows the user to create a duplicate of a folder and its contents, including subfolders and objects.Author-it Dependencies Plug-in: The Word Count Plug-in is an Author-it plug-in that allows the user to drill down into object relationships to find objects that selected Author-it objects depend on.Author-it Word Count Plug-in: The Word Count Plug-in is an Author-it plug-in that allows the user to get word counts for selected topics.Azure Configuration File Comparer: Compares two Azure configuration files and highlights the differencesBootstrap Footer Sticker: Bootstrap extensions for footer to stick at the bottomBulk Approval Webpart: This webpart can be added to any list, or document library that requires approval. When the button is clicked it will approve all items. It will also kick start any workflows attached to the list / library that are set to start when an item has been changed. CodeTimer: Code Execute TimeCRM 2011 - WinForm based User Settings Console: This is Windows Form based Utility to do bulk management of User Settings in CRM 2011Emergency System: An Imagine Cup projectFalafel Solution Rename Script: The Falafel Software Solution Rename PowerShell Script makes it easy to reuse an existing solution/project by performing a global rename. If you have a solution named ExampleSolution and want to reuse it as WidgetSolution, this script will rename everything for you.Gadgeteer Bluetooth Module: BETA Drivers for the .NET Gadgeteer Bluetooth modulesGreg's Channel 9 Utilities and Helpers: Utilities and helpers for Microsoft's Channel 9 (C9) site. These are utilities I've created to make my C9 work faster and easierHB's First Time: My first project hereHOMMFrame: Studying project about frames.ICNInformaticaCenter: * ICNInformaticaCenter *Insert a Favorite (Bookmark) plugin for Windows Live Writer: This Windows Live Writer plugin allows you to select a Favorite (Bookmark) and insert it into your blog entry.Kinect your Metro Style App: The main idea is to tell Metro Style App communicate with external environment via Kinect Sensor.Memo: Memo Intellegence SystemMGR.CommandLineParser: MGR.CommandLineParser is a multi-command line parser. It uses System.ComponentModel.DataAnnotations to declare and validate the commands.MusicStoreMVC3: ?????MVC3??????????，????????（???????）??? 1.EF4.1 2.MVC3 3.MvcPager 4.Linq ?????? NN Crew Calculator: Calculator project to help learn C#Reporte Ciudadano: Aplicación para que los ciudadanos reporten los problemas al ayuntamiento.Sejrssedler: This is a school project made, by four student in Aarhus, Denmark. During the Datamatiker study(2nd year).smartcamera: smart cameraSpecEx: Speculative ExecutionStructure Copier: This small program is supposed to copy tree structure of directory.TFS2010 Service Provider: Web Service (asmx) is a provider of Team Foundation Server 2010 object model. Was developed to enable the implementation of client application for Android and etc. platforms, which receives data from the server via Web services.totalem: totalem - free file manager for WindowsWebSharperWithTypeProviders: WebSharper project with Visual Studio 2011 Beta, .Net 4.5 and F# 3.0 with TypeProviders

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• Hardening network with sysctl settings made Wi-fi downloading speed extremely slow

  - by Rohit Bansal

  I just followed up following steps to harden network security The /etc/sysctl.conf file contain all the sysctl settings. Prevent source routing of incoming packets and log malformed IP's enter the following in a terminal window: sudo vi /etc/sysctl.conf Edit the `/etc/sysctl.conf` file and un-comment or add the following lines : # IP Spoofing protection net.ipv4.conf.all.rp_filter = 1 net.ipv4.conf.default.rp_filter = 1 # Ignore ICMP broadcast requests net.ipv4.icmp_echo_ignore_broadcasts = 1 # Disable source packet routing net.ipv4.conf.all.accept_source_route = 0 net.ipv6.conf.all.accept_source_route = 0 net.ipv4.conf.default.accept_source_route = 0 net.ipv6.conf.default.accept_source_route = 0 # Ignore send redirects net.ipv4.conf.all.send_redirects = 0 net.ipv4.conf.default.send_redirects = 0 # Block SYN attacks net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_max_syn_backlog = 2048 net.ipv4.tcp_synack_retries = 2 net.ipv4.tcp_syn_retries = 5 # Log Martians net.ipv4.conf.all.log_martians = 1 net.ipv4.icmp_ignore_bogus_error_responses = 1 # Ignore ICMP redirects net.ipv4.conf.all.accept_redirects = 0 net.ipv6.conf.all.accept_redirects = 0 net.ipv4.conf.default.accept_redirects = 0 net.ipv6.conf.default.accept_redirects = 0 # Ignore Directed pings net.ipv4.icmp_echo_ignore_all = 1 To reload sysctl with the latest changes, enter: sudo sysctl -p But, after applying the changes I found "Wi-fi" downloading speed and terminal downloading speed extremely slow (less than 1KB/s) however surfing speed through browser was good. But, using direct ethernet cable was giving a good speed. Then, I reverted back the above changes and things fall back in line once again.... Could you please let me know what possibly in above script is affecting such behaviour [and why] ? How could I still maintain hardening of network security without disturbing Wi-fi downloading speed ?

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• Wake On Lan (WOL) for Realtek RTL8101E/RTL8102E

  - by Heisennberg

  I'm unsuccessfully trying to get Wake on Lan to work with my local server (IP Address : 192.168.0.2, distro Ubuntu 12.04.3 LTS) which has a Realtek RTL8101E/RTL8102E ethernet card. The computer sending the WOL is a Macbook Pro which is connected on the same network. Yet the server fails to start. Here what I have done so far : name@serverName ~ $ cat /proc/acpi/wakeup Device S-state Status Sysfs node HDEF S3 *disabled pci:0000:00:1b.0 PXSX S3 *disabled PXSX S0 *enabled pci:0000:04:00.0 PXSX S0 *disabled USB1 S3 *enabled pci:0000:00:1d.0 USB2 S3 *enabled pci:0000:00:1d.1 USB3 S3 *enabled pci:0000:00:1d.2 USB5 S3 *enabled pci:0000:00:1a.1 EHC1 S3 *enabled pci:0000:00:1d.7 EHC2 S3 *enabled pci:0000:00:1a.7 name@serverName ~ $ lspci ------ 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 01) ------ name@serverName ~ $ sudo ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Link partner advertised pause frame use: Symmetric Receive-only Link partner advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000033 (51) drv probe ifdown ifup Link detected: yes and I'm calling the WOL with : name@serverName ~ $ wakeonlan xx:xx:xx:xx:xx` Sending magic packet to 255.255.255.255:9 with xx:xx:xx:xx:xx I have succesfully activated the WOL option in my computer BIOS. Any idea ?

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• CodePlex Daily Summary for Monday, August 13, 2012

  CodePlex Daily Summary for Monday, August 13, 2012Popular ReleasesDeForm: DeForm v1.0: Initial Version Support for: GaussianBlur effect ConvolveMatrix effect ColorMatrix effect Morphology effectLiteBlog (MVC): LiteBlog 1.31: Features of this release Windows8 styled UI Namespace and code refactoring Resolved the deployment issues in the previous release Added documentation Help file Help file is HTML based built using SandCastle Help file works in all browsers except IE10Self-Tracking Entity Generator for WPF and Silverlight: Self-Tracking Entity Generator v 2.0.0 for VS11: Self-Tracking Entity Generator for WPF and Silverlight v 2.0.0 for Entity Framework 5.0 and Visual Studio 2012Coding4Fun Tools: Coding4Fun.Phone.Toolkit v1.6.0: New Stuff ImageTile Control - think People Tile MicrophoneRecorder - Coding4Fun.Phone.Audio GzipWebClient - Coding4Fun.Phone.Net Serialize - Coding4Fun.Phone.Storage this is code I've written countless times. JSON.net is another alternative ChatBubbleTextBox - Added in Hint TimeSpan languages added: Pl Bug Fixes RoundToggleButton - Enable Visual State not being respected OpacityToggleButton - Enable Visual State not being respected Prompts VS Crash fix for IsPrompt=true More...AssaultCube Reloaded: 2.5.2 Unnamed: Linux has Ubuntu 11.10 32-bit precompiled binaries and Ubuntu 10.10 64-bit precompiled binaries, but you can compile your own as it also contains the source. If you are using Mac or other operating systems, please wait while we try to pack it. Try to compile it. If it fails, download a virtual machine. The server pack is ready for both Windows and Linux, but you might need to compile your own for Linux (source included) Added 3rd person Added mario jumps Fixed nextprimary code exploit ...NPOI: NPOI 2.0: New features a. Implement OpenXml4Net (same as System.Packaging from Microsoft). It supports both .NET 2.0 and .NET 4.0 b. Excel 2007 read/write library (NPOI.XSSF) c. Word 2007 read/write library(NPOI.XWPF) d. NPOI.SS namespace becomes the interface shared between XSSF and HSSF e. Load xlsx template and save as new xlsx file (partially supported) f. Diagonal line in cell both in xls and xlsx g. Support isRightToLeft and setRightToLeft on the common spreadsheet Sheet interface, as per existin...BugNET Issue Tracker: BugNET 1.1: This release includes bug fixes from the 1.0 release for email notifications, RSS feeds, and several other issues. Please see the change log for a full list of changes. http://support.bugnetproject.com/Projects/ReleaseNotes.aspx?pid=1&m=76 Upgrade Notes The following changes to the web.config in the profile section have occurred: Removed <add name="NotificationTypes" type="String" defaultValue="Email" customProviderData="NotificationTypes;nvarchar;255" />Added <add name="ReceiveEmailNotifi...ClosedXML - The easy way to OpenXML: ClosedXML 0.67.0: Conditional formats now accept formulas. Major performance improvement when opening files with merged ranges. Misc fixes.Virtual Keyboard: Virtual Keyboard v2.0 Source Code: This release has a few added keys that were missing in the earlier versions.Visual Rx: V 2.0.20622.9: help will be available at my blog http://blogs.microsoft.co.il/blogs/bnaya/archive/2012/08/12/visual-rx-toc.aspx the SDK is also available though NuGet (search for VisualRx) http://nuget.org/packages/VisualRx if you want to make sure that the Visual Rx Viewer can monitor on your machine, you can install the Visual Rx Tester and run it while the Viewer is running.????: ????2.0.5: 1、?????????????。RiP-Ripper & PG-Ripper: PG-Ripper 1.4.01: changes NEW: Added Support for Clipboard Function in Mono Version NEW: Added Support for "ImgBox.com" links FIXED: "PixHub.eu" links FIXED: "ImgChili.com" links FIXED: Kitty-Kats Forum loginPlayer Framework by Microsoft: Player Framework for Windows 8 (Preview 5): Support for Smooth Streaming SDK beta 2 Support for live playback New bitrate meter and SD/HD indicators Auto smooth streaming track restriction for snapped mode to conserve bandwidth New "Go Live" button and SeekToLive API Support for offset start times Support for Live position unique from end time Support for multiple audio streams (smooth and progressive content) Improved intellisense in JS version Support for Windows 8 RTM ADDITIONAL DOWNLOADSSmooth Streaming Client SD...Media Companion: Media Companion 3.506b: This release includes an update to the XBMC scrapers, for those who prefer to use this method. There were a number of behind-the-scene tweaks to make Media Companion compatible with the new TMDb-V3 API, so it was considered important to get it out to the users to try it out. Please report back any important issues you might find. For this reason, unless you use the XBMC scrapers, there probably isn't any real necessity to download this one! The only other minor change was one to allow the mc...NVorbis: NVorbis v0.3: Fix Ogg page reader to correctly handle "split" packets Fix "zero-energy" packet handling Fix packet reader to always merge packets when needed Add statistics properties to VorbisReader.Stats Add multi-stream API (for Ogg files containing multiple Vorbis streams)System.Net.FtpClient: System.Net.FtpClient 2012.08.08: 2012.08.08 Release. Several changes, see commit notes in source code section. CHM help as well as source for this release are included in the download. Remember that Windows 7 by default (and possibly older versions) will block you from opening the CHM by default due to trust settings. To get around the problem, right click on the CHM, choose properties and click the Un-block button. Please note that this will be the last release tested to compile with the .net 2.0 framework. I will be remov...Isis2 Cloud Computing Library: Isis2 Alpha V1.1.967: This is an alpha pre-release of the August 2012 version of the system. I've been testing and fixing many problems and have also added a new group "lock" API (g.Lock("lock name")/g.Unlock/g.Holder/g.SetLockPolicy); with this, Isis2 can mimic Chubby, Google's locking service. I wouldn't say that the system is entirely stable yet, and I haven't rechecked every single problem I had seen in May/June, but I think it might be good to get some additional use of this release. By now it does seem to...JSON C# Class Generator: JSON CSharp Class Generator 1.3: Support for native JSON.net serializer/deserializer (POCO) New classes layout option: nested classes Better handling of secondary classesAxiom 3D Rendering Engine: v0.8.3376.12322: Changes Since v0.8.3102.12095 ===================================================================== Updated ndoc3 binaries to fix bug Added uninstall.ps1 to nuspec packages fixed revision component in version numbering Fixed sln referencing VS 11 Updated OpenTK Assemblies Added CultureInvarient to numeric parsing Added First Visual Studio 2010 Project Template (DirectX9) Updated SharpInputSystem Assemblies Backported fix for OpenGL Auto-created window not responding to input Fixed freeInterna...DotSpatial: DotSpatial 1.3: This is a Minor Release. See the changes in the issue tracker. Minimal -- includes DotSpatial core and essential extensions Extended -- includes debugging symbols and additional extensions Tutorials are available. Just want to run the software? End user (non-programmer) version available branded as MapWindow Want to add your own feature? Develop a plugin, using the template and contribute to the extension feed (you can also write extensions that you distribute in other ways). Components ...New Projects.NET Weather Component: NET Weather is a component that will allow you to query various weather services for forcasts, current observations, etc..AxisProvider: Axis is a .NET reactive extensions based subscription and publication framework.Blawkay Hockey: Some xna testing i'm doing.Bolt Browser: Browse the web with ease. You'll never meet a browser more simple, friendly and easy to use. Blaze through the web the way it should be. Fast and beautiful.dotHTML: dotHTML provides a .NET-based DOM for HTML and CSS, facilitating code-driven creation of Web data.Fake DbConnection for Unit Testing EF Code: Unit test Entity Framework 4.3+ and confirm you have valid LINQ-to-Entities code without any need for a database connection.FNHMVC: FNHMVC is an architectural foundation for building maintainable web applications with ASP.NET, MVC, NHibernate & Autofac.FreeAgentMobile: FreeAgentMobile is a Windows Phone project intended to provide access to the FreeAgent Accounting application.Lexer: Generate a lexical analyzer (lexer) for a custom grammar by editing a T4 template.LibXmlSocket: XmlSocket LibraryMaxAlarm: This progect i create for my friend Igor.Minecraft Text Splitter: This tool was made to assist you in writing Minecraft books by splitting text into 255-byte pages and auto-copying it for later pasting into Minecraft.MxPlugin: MxPlugin is a project which demonstrates the calling of functions contained in DLLs both statically and dynamically. Parser: Generate a parser for a custom grammar by editing a T4 template.Sliding Boxes Windows Phone Game source code: .SmartSpider: ??????Http???????????，????????、??、???????。techsolittestpro: This project is testting project of codeplexThe Tiff Library - Fast & Simple .Net Tiff Library: The Tiff Library - Fast & Simple .Net Tiff LibraryVirtualizingWrapPanel: testVisual Rx: Visual Rx is a bundle of API and a Viewer which can monitor and visualize Rx datum stream (at run-time).we7T: testWebForms Transverse Library: This projet is aimed to compile best practices in ASP .NET WebForms development as generic tools working with UI components from various origins.

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• July, the 31 Days of SQL Server DMO’s – Day 3 (sys.dm_exec_connections)

  - by Tamarick Hill

    The third DMV we will review is the sys.dm_exec_connections DMV. This DMV is Server-Scoped and displays information about each and every current connection on your SQL Server Instance. Lets take a look at some information that this DMV returns. SELECT * FROM sys.dm_exec_connections After reviewing this DMV, in my opinion, its not a whole lot of useful information returned from this DMV from a monitoring or troubleshooting standpoint. The primary use case I have for this DMV is when I need to get a quick count of how many connections I have on one of my SQL Server boxes. For this purpose a quick SELECT COUNT(*) satisfies my need. However, for those who need it, there is other information such as what type of authentication a specific connection is using, network packet size, and client/local TCP ports being used. This information can come in handy for specific scenarios but you probably wont need it very much for your day to day monitoring/troubleshooting needs. However, this is still an important DMV that you should be aware of in the event that you need it. For more information on this DMV, please see the below Books Online link: http://msdn.microsoft.com/en-us/library/ms181509.aspx

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• How do I make my USB Bluetooth dongle work in Ubuntu 11.04 ? (Can't init device hci0: Connection timed out (110)) [closed]

  - by MaikoID

  I've a USB bluetooth dongle root@maiko-cce-lin:~# lsusb | grep Bluetooth Bus 001 Device 007: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) that isn't working properly, hardly-ever it works but stops working in my next reboot. what I've tried it isn't software blocked root@maiko-cce-lin:~# rfkill list 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no 1: hci0: Bluetooth Soft blocked: no Hard blocked: no my device is recognized by hciconfig root@maiko-cce-lin:~# hciconfig -a hci0: Type: BR/EDR Bus: USB BD Address: 00:1F:81:00:01:1C ACL MTU: 1021:4 SCO MTU: 180:1 DOWN RX bytes:330 acl:0 sco:0 events:8 errors:0 TX bytes:24 acl:0 sco:0 commands:30 errors:22 Features: 0xff 0x3e 0x09 0x76 0x80 0x01 0x00 0x80 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: Link mode: SLAVE ACCEPT but I can't turn on my hci interface root@maiko-cce-lin:~# hciconfig hci up Can't init device hci0: Connection timed out (110) I don't understand why.. the hcitool command doesn't show any device. root@maiko-cce-lin:~# hcitool dev Devices: I've tried to restart my bluetooth service too with this command and make all these previous commands again but without success. root@maiko-cce-lin:~# service bluetooth restart * Stopping bluetooth [ OK ] * Starting bluetooth [ OK ] root@maiko-cce-lin:~# The dongle works if you disconnect it from usb, wait a few seconds and connect it again. so there must be better solution for it ( a solution not involving physically removing the dongle!)

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